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Corrosion Inhibition Studies of Ecbolium Viride Extracts on Mild Steel in HCl
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نویسنده
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Ashok Kumar S. L. ,Iniyavan P. ,Saravana Kumar M. ,Sreekanth A.
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منبع
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journal of materials and environmental science - 2012 - دوره : 3 - شماره : 4 - صفحه:670 -677
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چکیده
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The corrosion inhibition of ecbolium viride plant extracts on the mild steel corrosion in 1 m hcl has been investigated by weight loss, tafel polarization and electrochemical impedance spectroscopy (eis). the corrosion inhibition efficiency increases on increasing the plant extract concentration. adsorption of inhibitor was found to follow the langmuir`s adsorption isotherm. thus, it can be classified as anionic inhibitor. adsorption equilibrium constant (kads) and free energy of adsorption (δg0ads) were calculated and discussed. surface analysis (sem) was also carried out to establish the corrosion inhibitive property of ecbolium viride in 1 m hcl solution
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کلیدواژه
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Ecbolium viride ,Mild steel ,Tafel polarization ,EIS ,Langmuir`s adsorption
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آدرس
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National Institute of Technology, Center of Excellence in Corrosion and Surface Engineering, Department of Chemistry, India, National Institute of Technology, Center of Excellence in Corrosion and Surface Engineering, Department of Chemistry, India, National Institute of Technology, Center of Excellence in Corrosion and Surface Engineering, Department of Chemistry, India, National Institute of Technology, Center of Excellence in Corrosion and Surface Engineering, Department of Chemistry, India
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پست الکترونیکی
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sreekanth@nitt.edu
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Authors
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